Reincarnated into an Otome Game as the Heroine's sister

In her past life before reincarnating, she was a test subject where they fused an ancient, enchanted demon katana with her soul and became the World's top assassin and War machine.
Now given a new start, she is determined to live a life with no regrets.

~Details~
Updates every Wednesday
Still ongoing

Hope you guys enjoy it!!
Any criticism, feedback or advice welcomed and appreciated!